Actually..........Aussie's (just not kids, but not me I wear shorts all year round like Alpo above, but I respect folks eyesight and their appetites....so always wear a shirt in public) anyway back to Aussies.....it's been a LONG STINKING HOT SUMMER .... you know that heat when ya' don't think you can handle it for much longer and you're about to go troppo because it ain't getting down below 29°C (85°F) at night and the humidity is hovering around 98% and you look at the forecast and the next 7 days is expected to have highs of 40°C (105°F) with the UV maxed out and you're thinking of that new crop of sun cancers that your skin specialist is going to love you for so he can fly first class to Europe for his holidays......
Well AS SOON as it hits 18°C (65°F) you'll see boofheads wearing North Face jackets and the like and saying "Damn ain't it cold today"